LG U81xx Unlocking Procedure
 

Lock to the network

1. Without checking NEW VER box, enter 123-45 in the near box, then unlock button in SW changed to LOCK TO NETWORK, connect the phone to 9volt added LG cable, phone must be off with battery, press on LOCK TO NETWORK and then on button on the phone, when this process is done,

Reading from the phone unlocking codes

2. Check NEW VER box and don't write anything in the near box, then SW button changed to UNLOCK, press on unlock button and then on button on the phone, SW reading codes, when this process is done, remove the phone,

Entering code in the phone

3. Put operator 3s sim-card and do as in SW read, enter 2945#*88110#, you are now in the network area (1) Unlock USIM, press on that, then (1) Network Lock, press on that and enter the NCK CODE that was read from the phone, that was all, now the phone is unlocked.